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2000 | 97 | 5 | 851-854
Article title

Susceptibility Behaviour of CuGeO_{3}: Comparison between Experiment and the Quantum Transfer Matrix Approach

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Abstracts
EN
Thermodynamical properties of one-dimensional S=1/2 Heisenberg model with dimerized nearest- and uniform next-nearest-neighbour interactions are studied by the numerically exact quantum transfer matrix method and the results are applied to CuGeO_{3}. Suzuki-Trotter formula is used to obtain a classical system with spin σ=3/2 and effective interactions between nearest-neigbours only. Magnetic susceptibility curve is calculated and compared with new experimental results performed in a wide temperature range, revealing the presence of frustration in the model proposed for CuGeO_{3}.
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Contributors
author
  • Institute of Physics, Adam Mickiewicz University, ul. Umultowska 85, 61-614 Poznań, Poland
author
  • Institut d'Electronique Fondamentale, Université Paris-Sud, Bâtiment 220, 91405 Orsay Cedex, France
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bwmeta1.element.bwnjournal-article-appv97z530kz
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